{"id":3919,"date":"2019-10-13T02:58:36","date_gmt":"2019-10-12T18:58:36","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=3919"},"modified":"2019-10-13T02:58:36","modified_gmt":"2019-10-12T18:58:36","slug":"cmake-and-protocol-buffers-on-windows","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/3919","title":{"rendered":"CMake and Protocol Buffers on Windows"},"content":{"rendered":"

\u539f\u6587\u5730\u5740<\/a><\/p>\n

 <\/p>\n

Friday, May 25, 2018<\/div>\n
\n

Protocol buffers<\/a>\u00a0are Google\u2019s language-neutral, platform-neutral approach for serializing structured data.<\/p>\n

On linux, you can easily install it using package management. On Windows, you may build it from source and install it.\u00a0Here<\/a>\u00a0is the instructions to install it on Windows.<\/p>\n

Suppose it is installed under the install location, such as\u00a0d:\\pgk\\protobuf<\/code>, the directory structure is as follows:<\/p>\n

+---bin\r\n+---cmake\r\n+---include\r\n|   \\---google\r\n|       \\---protobuf\r\n|           +---compiler\r\n|           |   +---cpp\r\n|           |   +---csharp\r\n|           |   +---java\r\n|           |   +---javanano\r\n|           |   +---js\r\n|           |   +---objectivec\r\n|           |   +---php\r\n|           |   +---python\r\n|           |   \\---ruby\r\n|           +---io\r\n|           +---stubs\r\n|           \\---util\r\n\\---lib\r\n    \\---pkgconfig \r\n<\/code><\/pre>\n
CMake<\/h1>\n
CMake<\/a>\u00a0is an excellent tool for building, testing and packaging. The following example shows how to use Protocol buffers in your project:<\/p>\n
\n
\n
find_package<\/span>(<\/span>Protobuf REQUIRED)<\/span>\r\ninclude_directories<\/span>(<\/span>${<\/span>Protobuf_INCLUDE_DIRS<\/span>}<\/span>)<\/span>\r\ninclude_directories<\/span>(<\/span>${<\/span>CMAKE_CURRENT_BINARY_DIR<\/span>}<\/span>)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS foo.proto)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS EXPORT_MACRO DLL_EXPORT foo.proto)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS DESCRIPTORS PROTO_DESCS foo.proto)<\/span>\r\nprotobuf_generate_python<\/span>(<\/span>PROTO_PY foo.proto)<\/span>\r\nadd_executable<\/span>(<\/span>bar bar.cc ${<\/span>PROTO_SRCS<\/span>}<\/span> ${<\/span>PROTO_HDRS<\/span>}<\/span>)<\/span>\r\ntarget_link_libraries<\/span>(<\/span>bar ${<\/span>Protobuf_LIBRARIES<\/span>}<\/span>)<\/span>\r\n<\/code><\/pre>\n<\/div>\n<\/div>\n
However, the above CMake script will fail due to the error: \u201cprotobuf not found\u201d. To let CMake successfully find the installed protobuf package, you can specify the install location as follows:<\/p>\n
\n
\n
set<\/span>(<\/span>CMAKE_PREFIX_PATH\r\n\t\"d:\/pkg\/protobuf\"<\/span>\r\n\t\"<\/span>${<\/span>CMAKE_PREFIX_PATH<\/span>}<\/span>\"<\/span>\r\n\t)<\/span>\r\n \r\nfind_package<\/span>(<\/span>Protobuf REQUIRED)<\/span>\r\ninclude_directories<\/span>(<\/span>${<\/span>Protobuf_INCLUDE_DIRS<\/span>}<\/span>)<\/span>\r\ninclude_directories<\/span>(<\/span>${<\/span>CMAKE_CURRENT_BINARY_DIR<\/span>}<\/span>)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS foo.proto)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS EXPORT_MACRO DLL_EXPORT foo.proto)<\/span>\r\nprotobuf_generate_cpp<\/span>(<\/span>PROTO_SRCS PROTO_HDRS DESCRIPTORS PROTO_DESCS foo.proto)<\/span>\r\nprotobuf_generate_python<\/span>(<\/span>PROTO_PY foo.proto)<\/span>\r\nadd_executable<\/span>(<\/span>bar bar.cc ${<\/span>PROTO_SRCS<\/span>}<\/span> ${<\/span>PROTO_HDRS<\/span>}<\/span>)<\/span>\r\ntarget_link_libraries<\/span>(<\/span>bar ${<\/span>Protobuf_LIBRARIES<\/span>}<\/span>)<\/span><\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u539f\u6587\u5730\u5740   Friday, <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[118],"class_list":["post-3919","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=3919"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3919\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=3919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=3919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=3919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}